<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
     <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
     <el-breadcrumb-item>商品管理</el-breadcrumb-item>
     <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddGoods">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- 表格区域 -->
      <el-table :data="goodsList" border stripe>
        <!-- 索引列 -->
        <el-table-column type="index"></el-table-column>
        <!-- 数据列 -->
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time"  width="140px">
          <!-- eslint-disable -->
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作"  width="130px">
          <!-- eslint-disable -->
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row.goods_id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页栏 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total" background>
      </el-pagination>
    </el-card>

    <!-- 编辑商品的对话框 -->
    <el-dialog title="修改商品" :visible.sync="editGoodsVisible" width="50%">
      <!-- 修改商品的表单内容 -->
      <el-form :model="editGoodsForm" ref="editGoodsFormRef" label-width="100px">
        <el-form-item label="商品名称" prop="goods_name">
          <el-input v-model="editGoodsForm.goods_name"></el-input>
        </el-form-item>
        <el-form-item label="商品价格" prop="goods_price">
          <el-input v-model="editGoodsForm.goods_price"></el-input>
        </el-form-item>
        <el-form-item label="商品重量" prop="goods_weight">
          <el-input v-model="editGoodsForm.goods_weight"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer">
        <el-button @click="editGoodsVisible = false">取 消</el-button>
        <el-button type="primary" @click="editRoles">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodsList:[],
      // 总数据条数
      total: 0,
      // 编辑商品对话框的显示与隐藏
      editGoodsVisible: false,
      editGoodsForm:{
        goods_name:'',
        goods_price:'',
        goods_weight:''
      },
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList(){
      const {data:res} = await this.$http.get(`goods`,{ params:this.queryInfo })

      if(res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败')
      }

      this.$message.success('获取商品列表成功')
      // console.log(res.data);
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newSize){
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(newPage){
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    async removeById(id){
      const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

      if(confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }

      const {data:res} = await this.$http.delete(`goods/${id}`)
      if(res.meta.status !== 200) {
        return this.$message.error('删除商品失败')
      }
      this.$message.success('删除商品成功')
      this.getGoodsList()
    },
    goAddGoods(){
      this.$router.push('/goods/add')
    },
    async edit(id){
      this.editGoodsVisible = true
    },
    editRoles(){
      this.editGoodsVisible = false
    }
  },
}
</script>

<style lang="less" scoped>

</style>